function showTab(x){
	document.getElementById('tabs').src='/images/dc_tab_'+x+'.gif';
	var tabDivs=document.getElementById('thumbs').getElementsByTagName('div')
	if(tabDivs.length){
		for(var i=0;i<tabDivs.length;i++){
			tabDivs[i].style.display='none';
		}
		document.getElementById(x).style.display='block';
	}
}
function showPhoto(loc,x,y){
	var photoImgs=document.getElementById('thumbs').getElementsByTagName('img')
	if(photoImgs.length){
		for(var i=0;i<photoImgs.length;i++){
			photoImgs[i].className='';
		}
	}
	document.getElementById('photo').src='/images/data_centers/'+loc+'/med/'+x+'.jpg';
	document.getElementById('th_'+x).className='selected';
	document.getElementById('caption').innerHTML=y;
	document.getElementById('viewlarger').href='javascript:viewLarger("'+loc+'","'+x+'")';
}
function viewLarger(loc,x){
	var popWindow=window.open('/photoviewer.html?photo='+x+'&loc='+loc,'title','width=800,height=600,location=no,scrollbars=no,toolbar=0,directories=0,status=0,menubar=0,resizable=no,screenx=0,screeny=0,top=0,left=0');popWindow.focus();
}

function viewMedium(loc,x){
	var popWindow=window.open('/mediumviewer.html?photo='+x+'&loc='+loc,'title','width=390,height=308,location=no,scrollbars=no,toolbar=0,directories=0,status=0,menubar=0,resizable=no,screenx=0,screeny=0,top=0,left=0');popWindow.focus();
}



var delay=50,transition=5,t;
function setOpacity(opacity,id){var object=document.getElementById(id).style;object.opacity=(opacity/100);object.MozOpacity=(opacity/100);object.KhtmlOpacity=(opacity/100);object.filter="alpha(opacity="+opacity+")";}
function fadeIn(x,start){t1=0;for(i=0;i<=100;i++){if(start){setTimeout("setOpacity('"+i+"','"+x.id+"')",0)}else{setTimeout("setOpacity('"+i+"','"+x.id+"')",(t1*transition))};t1++}}
function fadeOut(y){t2=0;for(m=100;m>=0;m--){setTimeout("setOpacity('"+m+"','"+y.id+"')",(t2*transition));t2++}}
function startSlideShow(x,start){
	clearTimeout(t);
	for(j=0;j<imagesArray.length;j++){
		imagesArray[j].id='image'+j;
		captionsArray[j].id='caption'+j;
		linksArray[j].className='';
		setOpacity('0',captionsArray[j].id)
		if(imagesArray[j].style.zIndex==1){
			imagesArray[j].style.zIndex=0;
			captionsArray[j].style.zIndex=0;
			if(j!=x){
				fadeOut(imagesArray[j])
				fadeOut(captionsArray[j])
			}
		}else{
			setOpacity('0',imagesArray[j].id)
		}
	}
	imagesArray[x].style.zIndex=1;
	captionsArray[x].style.zIndex=1;
	linksArray[x].className='current';
	fadeIn(imagesArray[x],start);
	fadeIn(captionsArray[x],start);
	x++;
	if(x>slides.length-1){x=0}
	t=setTimeout("startSlideShow("+x+",'')",delay*100);
}